- High grade marine quality aluminium, 'Spectro' grey anodised for durability.
- Sheaves are turned from a solid Ertalyte bar and run on a large diameter centre bearing for easy running under high load.

Dimensions
(Length x width) : 145 x 261 mm
Sheave width : 18 mm
SWL (Safe Working Load) : 1000 kg
Break load* : 2000 kg

* Stacking blocks to achieve doubles will reduce working loads.